| 摘要 |
A back stretching device includes a curved cushion having an elongated slot through top and bottom sides thereof, a housing mounted on the bottom side of the curved cushion, a motor mounted in the housing, and a rotating member accommodated in the housing and eccentrically connected with an output shaft of the motor. Thus, the back stretching device of the invention can be used to effectively stretch and relax a user's back muscles.
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